Home / 821,202.63-1,231,847.69-260,280.87

Finding the Fourth Proportional to 821,202.63, 1,231,847.69 and 260,280.87

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Solution

The fourth proportional to 821,202.63, 1,231,847.69 and 260,280.87 is: 390,435.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,202.63 : 1,231,847.69 = 260,280.87 : x
  2. Step 2: Convert to fraction form
    821,202.63/1,231,847.69 = 260,280.87/x
  3. Step 3: Cross multiply
    821,202.63x = 1,231,847.69 × 260,280.87
  4. Step 4: Simplify right side
    821,202.63x = 320,626,387,159.29
  5. Step 5: Solve for x
    x = 320,626,387,159.29/821,202.63
  6. Step 6: Final answer
    x = 390,435.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.